This is new Elan touch screen IC, which includes touch panel and USI pen.
BUG=b:151514167
TEST=build bios and verify touch screen works fine
Signed-off-by: Tommie Lin <tong.lin@bitland.corp-partner.google.com>
Change-Id: I98801b8c31812637f71d7eaaa0f12b47901dc47a
Reviewed-on: https://review.coreboot.org/c/coreboot/+/39494
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martinroth@google.com>